Sometimes the same peonies look different under different growing conditions, age of the plants also matters. I saw pictures online of peony Lady Alexander Duff once that looked similar to yours, but they could be mis-IDed as well. That's why it is hard to ID it with 100% certainty unless it is easily recognizable.
It could be another Calot creation as well...
https://pivoinesriviere.com/pr...
https://pivoinesriviere.com/pr...
